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I. Basic Information for CVE-2020-8559
Vulnerability Information
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Vulnerability Title
Privilege escalation from compromised node to cluster
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Kubernetes kube-apiserver 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kubernetes（K8s）是云原生计算基金会（Cloud Native Computing Foundation）的一个开源系统，用于自动部署、扩展和管理容器化应用程序。 Kubernetes kube-apiserver中存在输入验证错误漏洞。攻击者可利用该漏洞提升权限。以下产品及版本受到影响：Kubernetes kube-apiserver v1.6版本至v1.15版本，v1.16.13之前版本，v1.17.9之前版本，v1.18.6之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
KubernetesKubernetes 1.6 -
II. Public POCs for CVE-2020-8559
#POC DescriptionSource LinkShenlong Link
1Proof of Concept exploit for Kubernetes CVE-2020-8559https://github.com/tabbysable/POC-2020-8559POC Details
2This is a PoC exploit for CVE-2020-8559 Kubernetes Vulnerability https://github.com/tdwyer/CVE-2020-8559POC Details
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III. Intelligence Information for CVE-2020-8559
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IV. Related Vulnerabilities
Same product: Kubernetes
Same vendor: Kubernetes
Same weakness: CWE-601
V. Comments for CVE-2020-8559

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